seal
7 ENTRIES FOUND:
seals; sealed; sealing
seals; sealed; sealing
Learner's definition of SEAL
1
a [+ object] : to close (something) tightly so that air, liquid, etc., cannot get in or out密封 — often + up
- He sealed the jar.他把罐子密封了起来。
- He sealed up the cracks in the wall.他封住了墙上的裂缝。
b [+ object] : to close (an envelope, bag, etc.) by sticking or pressing two of its parts together封上（信封）；系上（袋口）
- Would you seal this envelope?麻烦你封上信封好吗？
c [no object] : to become closed tightly密闭；关紧
- Make sure the bag seals properly.务必要把袋子的口系紧。
2
[+ object] : to cover the surface of (something) with a substance that will protect it给…涂上保护层
- We used a sealant/sealer to seal the wood to make it waterproof.我们在木头上涂了一层密封胶，用于防水。
3
[+ object] : to make (something) definite and final确定；锁定；使成定局
- His home run sealed the victory. [=his home run made it certain that his team would win]他的本垒打锁定了胜局。
- (informal) They finally sealed the deal. [=they finally reached an agreement and made a deal]他们终于达成了交易。
- Their decision sealed her fate. = Once they made their decision, her fate was sealed. [=their decision made it certain that something bad or unwanted would happen to her]他们的决定锁定了她的命运。
4
[+ object] : to prevent someone from going into or through (an area or place)封锁；封闭；关闭
- Troops have sealed the border between the two countries.军队已经封锁了两国之间的边境。
- The room/chamber has been sealed and no one can enter.那个房间已被封闭，任何人不得进入。
my lips are sealed
seal in
[phrasal verb] seal (something) in or seal in (something)
: to prevent (something that is in something else) from getting out or escaping把…封闭在内
- He seared the steak to seal in the juices.他把牛排煎了一下以锁住肉汁。
seal off
[phrasal verb] seal off (something) or seal (something) off
: to prevent people from entering or leaving (an area or place)封锁
- Police sealed off the crime scene.警方封锁了犯罪现场。
— sealed
adjective- a sealed jar密封的罐子
2 seal /ˈsiːl/ noun
plural seals
2 seal
/ˈsiːl/
noun
plural seals
Learner's definition of SEAL
[count]
1
a : an official mark that is stamped on paper or on a small piece of wax to show that something (such as a document) is genuine and has been officially approved印章；图章
- The paperwork must have a notary's seal.书面材料必须盖上公证员的印章。
b : a small piece of stamped wax or a small sticker that is put on a letter or envelope to keep it closed or to show that it has not been opened封蜡；封条
2
: a device with a raised design that can be pressed into something (such as paper or wax) to make a seal封蜡模（印）
3
a : a piece of material (such as rubber) that is used on the lid of a container to keep air, water, etc., out of the container or to show the container has not been opened密封垫；密封圈
- a rubber seal on the jar罐子上的橡胶密封垫
- The plastic seal on the bottle was broken.瓶子上的塑料封口已经拆开了。
b : the state of being closed tightly so that no air, water, etc., can pass through密封；密闭
- The caulk gives the window an airtight seal.缝隙填充材料把窗户封得密不透风。
seal of approval
: an action or statement that shows approval or official acceptance批准；接受
- The bill has the President's seal of approval.提案得到了总统的批准。
- Fans have given the band's new song their seal of approval. [=fans like the band's new song]这个乐队的新歌得到了歌迷们的肯定。
set the seal on
British, formal : to make (something) final or definite确定；锁定；使成定局
- The goal set the seal on their victory. [=the goal sealed/assured their victory]这一进球使他们锁定了胜局。
under seal
law, formal : having an official seal that prevents the public from seeing or reading it密封；加盖印信
- a document/contract under seal密封的文件/合同
— compare 3seal
plural seals
plural seals
Learner's definition of SEAL
1
[count] : a large animal that lives in the sea near coasts, has flippers, and eats fish海豹
2
[noncount] : the skin of a seal usually used for fur海豹皮
- a jacket made of seal海豹皮夹克
— compare 2seal
